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Recent advancements in neural compression have surpassed traditional codecs in PSNR and MS-SSIM measurements. However, at low bit-rates, these methods can introduce visually displeasing artifacts, such as blurring, color shifting, and…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Daxin Li , Yuanchao Bai , Kai Wang , Junjun Jiang , Xianming Liu

Lossy image compression is often limited by the simplicity of the chosen loss measure. Recent research suggests that generative adversarial networks have the ability to overcome this limitation and serve as a multi-modal loss, especially…

图像与视频处理 · 电气工程与系统科学 2021-03-09 Jan P. Klopp , Keng-Chi Liu , Liang-Gee Chen , Shao-Yi Chien

For lossy image compression, we develop a neural-based system which learns a nonlinear estimator for decoding from quantized representations. The system links two recurrent networks that \help" each other reconstruct same target image…

计算机视觉与模式识别 · 计算机科学 2019-11-21 Ankur Mali , Alexander G. Ororbia , Clyde Lee Giles

Recently, learned image compression methods have developed rapidly and exhibited excellent rate-distortion performance when compared to traditional standards, such as JPEG, JPEG2000 and BPG. However, the learning-based methods suffer from…

图像与视频处理 · 电气工程与系统科学 2022-06-24 Bowen Li , Yao Xin , Youneng Bao , Fanyang Meng , Yongsheng Liang , Wen Tan

Neural image compression have reached or out-performed traditional methods (such as JPEG, BPG, WebP). However,their sophisticated network structures with cascaded convolution layers bring heavy computational burden for practical deployment.…

图像与视频处理 · 电气工程与系统科学 2022-03-14 Shanzhi Yin , Chao Li , Wen Tan , Youneng Bao , Yongsheng Liang , Wei Liu

Lossless image compression is an important task in the field of multimedia communication. Traditional image codecs typically support lossless mode, such as WebP, JPEG2000, FLIF. Recently, deep learning based approaches have started to show…

图像与视频处理 · 电气工程与系统科学 2020-02-06 Zhengxue Cheng , Heming Sun , Masaru Takeuchi , Jiro Katto

We propose an end-to-end trainable image compression framework with a multi-scale and context-adaptive entropy model, especially for low bitrate compression. Due to the success of autoregressive priors in probabilistic generative model, the…

图像与视频处理 · 电气工程与系统科学 2019-10-18 Jing Zhou , Sihan Wen , Akira Nakagawa , Kimihiko Kazui , Zhiming Tan

A deep image compression scheme is proposed in this paper, offering the state-of-the-art compression efficiency, against the traditional JPEG, JPEG2000, BPG and those popular learning based methodologies. This is achieved by a novel…

图像与视频处理 · 电气工程与系统科学 2019-02-28 Haojie Liu , Tong Chen , Peiyao Guo , Qiu Shen , Zhan Ma

Lossless image compression is an essential research field in image compression. Recently, learning-based image compression methods achieved impressive performance compared with traditional lossless methods, such as WebP, JPEG2000, and FLIF.…

图像与视频处理 · 电气工程与系统科学 2022-08-31 Ran Wang , Jinming Liu , Heming Sun , Jiro Katto

Lossy image compression has been studied extensively in the context of typical loss functions such as RMSE, MS-SSIM, etc. However, compression at low bitrates generally produces unsatisfying results. Furthermore, the availability of massive…

图像与视频处理 · 电气工程与系统科学 2019-06-26 Ashutosh Bhown , Soham Mukherjee , Sean Yang , Shubham Chandak , Irena Fischer-Hwang , Kedar Tatwawadi , Judith Fan , Tsachy Weissman

Deep neural networks represent a powerful class of function approximators that can learn to compress and reconstruct images. Existing image compression algorithms based on neural networks learn quantized representations with a constant…

计算机视觉与模式识别 · 计算机科学 2018-02-09 David Minnen , George Toderici , Michele Covell , Troy Chinen , Nick Johnston , Joel Shor , Sung Jin Hwang , Damien Vincent , Saurabh Singh

Lossless image compression is an important technique for image storage and transmission when information loss is not allowed. With the fast development of deep learning techniques, deep neural networks have been used in this field to…

图像与视频处理 · 电气工程与系统科学 2021-08-25 Honglei Zhang , Francesco Cricri , Hamed R. Tavakoli , Nannan Zou , Emre Aksu , Miska M. Hannuksela

We extensively study how to combine Generative Adversarial Networks and learned compression to obtain a state-of-the-art generative lossy compression system. In particular, we investigate normalization layers, generator and discriminator…

图像与视频处理 · 电气工程与系统科学 2020-10-26 Fabian Mentzer , George Toderici , Michael Tschannen , Eirikur Agustsson

The method of importance map has been widely adopted in DNN-based lossy image compression to achieve bit allocation according to the importance of image contents. However, insufficient allocation of bits in non-important regions often leads…

图像与视频处理 · 电气工程与系统科学 2020-01-22 Lirong Wu , Kejie Huang , Haibin Shen

Learned progressive image compression is gaining momentum as it allows improved image reconstruction as more bits are decoded at the receiver. We propose a progressive image compression method in which an image is first represented as a…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Alberto Presta , Enzo Tartaglione , Attilio Fiandrotti , Marco Grangetto , Pamela Cosman

We propose a context-adaptive entropy model for use in end-to-end optimized image compression. Our model exploits two types of contexts, bit-consuming contexts and bit-free contexts, distinguished based upon whether additional bit…

图像与视频处理 · 电气工程与系统科学 2019-05-07 Jooyoung Lee , Seunghyun Cho , Seung-Kwon Beack

Recently deep learning-based methods have been applied in image compression and achieved many promising results. In this paper, we propose an improved hybrid layered image compression framework by combining deep learning and the traditional…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Haisheng Fu , Feng Liang , Bo Lei , Nai Bian , Qian zhang , Mohammad Akbari , Jie Liang , Chengjie Tu

Deep networks are increasingly being applied to problems involving image synthesis, e.g., generating images from textual descriptions and reconstructing an input image from a compact representation. Supervised training of image-synthesis…

机器学习 · 计算机科学 2017-01-25 Jake Snell , Karl Ridgeway , Renjie Liao , Brett D. Roads , Michael C. Mozer , Richard S. Zemel

With the rapid advancement of stereo vision technologies, stereo image compression has emerged as a crucial field that continues to draw significant attention. Previous approaches have primarily employed a unidirectional paradigm, where the…

图像与视频处理 · 电气工程与系统科学 2024-10-29 Zhening Liu , Xinjie Zhang , Jiawei Shao , Zehong Lin , Jun Zhang

Lossless image compression is required in various applications to reduce storage or transmission costs of images, while requiring the reconstructed images to have zero information loss compared to the original. Existing lossless image…

信息论 · 计算机科学 2024-09-12 Samar Agnihotri , Renu Rameshan , Ritwik Ghosal